Tax protester constitutional arguments

Tax protesters in the United States advance a number of constitutional arguments asserting that the imposition, assessment and collection of the federal income tax violates the United States Constitution. These kinds of arguments, though related to, are distinguished from statutory and administrative arguments, which presuppose the constitutionality of the income tax, as well as from general conspiracy arguments, which are based upon the proposition that the three branches of the federal government are involved together in a deliberate, on-going campaign of deception for the purpose of defrauding individuals or entities of their wealth or profits. Although constitutional challenges to U.S. tax laws are frequently directed towards the validity and effect of the Sixteenth Amendment, assertions that the income tax violates various other provisions of the Constitution have been made as well.

Some protesters argue that imposition of income taxes violates the First Amendment freedom of speech because

Other protesters argue that the Fifth Amendment right against self-incrimination allows an individual to refuse to file an income tax return calling for information that could lead to a conviction for criminal acts from which the income was derived, or for the crime of not paying the tax itself. In response, the courts generally refer to the case of United States v. Sullivan, where Justice Oliver Wendell Holmes wrote:

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